Signal and parking lamp



July 14, 1925.

J. BERG SIGNAL AND PARKING LAMP Filed Nov. '5. 1921 'the'casing; D, an incandescent Patented July 14, 1925.

I UNITED sures PATENT, OFFICE.

JOHN BERG, OF CHICAGO, ILLINOIS, ASSIGNOR 'IO METAL SPECIALTIES MANUFAC- TURING COMPANY, OF CHICAGO,'ILLINOIS, A CORPORATION OF ILLINOS.

SIGNAL AND PAIR/KING LAMP.

Application filed November 5, 1921. Serial No. 518,059.

To, all whom it may concern:

Be it known that I, JOHN BERG, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a new and useful Improvement in Signal and Parking Lamps, of which the following is a specification.

This invention relates particularly to a signal and parking lamp for use on motor vehicles; and the primary object is to provide an improved lamp of this character which can be used for signalling purposes when the vehicle is being driven, and can be used for parking purposes when the car is left standing in a public place.

The invention is illustrated, in its preferred embodiment, in the accompanying drawing, in which-- Fig. 1 represents a broken front view of the improved signal and parking lamp; 2, a vertical sectional view taken as indlcated at line 2 of Fig. 1; Fig. 3, a broken sectional view taken as indicated at line 3 of Fig. 2, the reflector being removed; and Fig. 4, a broken view of the reflector.

In' the construction illustrated, A represents a casing having a peripheral wall A and a rearwardly dished rear wall A B, a glass bulls-eye mounted in a central perforation with which the wall A is, provided; 0, a reflector mounted in the rear portion of lamp mounted in the casing in front of said reflector; and E, a lens or glass-plate secured to the front portion of the peripheral wall A and constituting the front wall of the casing.

In the form illustrated, the casing A has its peripheral portion A of cylindrical form and has its rear wall A bowed rearwardly. The casing may be drawn from sheet metal. The rearwardly bowed wall A is provided with a central perforation 1 thru which the glass "bulls-eye Bprojects. The metal surrounding the opening 1 is struck inwardly to form a narrow flange 1 which is slightly dished or concaved to accommodate the bulls-eye, that is, the flange 1 flares or-diverges forwardly and is made slightly concave to conform closely to the base portion of the bulls-eye.

The bulls-eye B approximates the form of a half of a solid sphere or cone. It presents a flat base 2, which is however preferably concaved slightly as indicated by the dotted line at 2. The periphery of the base .tend thru perforations The incandescent lamp bulb Dis mount portion of the bulls-eye fits snugly in the socket afforded by the concave flange 1 The flange 1* is provided at its inner edge v with clenching lugs 3 formed integrally with the flange. These clenching lugs ex- 3 which are grouped about a central perforation l with which the reflector C is provided. Thereflector C is dished or bowed rearwardly and has its central portion bearing againstthe base pro- 5 tion of the bulls-eye. The peripheral portion of the reflector is curved rearwardly as indicated at 5 and bears against an internal shoulder with which the rear portion of the'casing A is provided.

It will be understood that the reflector is secured in position by passing the clenching lugs 3 thru the perforations 3 of the reflector and clenching them against the front face of the reflector.

ed in a socket D which is'secured to the peripheral wall of the casing. The socket D is a tubular member which extends thru a perforation in the peripheral wall of the casing, said peripheral wall having the metal sheared at said opening and struck inwardly to provide integral lugs 6 which are secured, by rivets 6, to the socket D. The socket D is suitably formed to receive an electric connector which is attached to conductors forming a part of the electric" circuit.

The glass disk E is preferably provided on. itsrear surface with small prisms 7. These may be molded in the glass in forming the disk. The front face of the glass of the disk 7 preferably is provided with a word adapted to convey a signal or warning a driver in the rear. In the illustration given, the word Stop is used. The letters of this word (two of which are shown) are designated 7*. These letters are preferably raised characters formed integrally with the front surface of the disk 7. In addition, a suitable design 7 b is formed in relief on the front face of the disk 7. The sunken face 7 of the disk 7 is preferably coated with black enamel, or some opaque substance, so that the'word Stop and the design 7 alone remain transparent, the rear surfaceof the disk being corrugated or prismed, however, which serves to diffuse the light which passes thru the letters of the word Stop and thru the raised design portions 7", so

that no glare will result.

The bottom portion of the casing is equipped with a" supporting standard 9 which has a base portion 9 which is curved to conform to the rear fender of a car. Thelamp casing may, be mounted uponthe rear fender with the glass disk 7 exposed rearwardly of the machine.

In the use of the improved device, the lamp bulb is connected with anelectric circuit which is controlled by a. suitable circuitcontrolling device. This circuit-controlling device, or switch, may, in turn, be controlle by the foot-brake and the emergency brake levers ofthe automobile. Thus, when the driver of the automobile brings the -vehicle to a stop, or turns a corner, the lamp is automatically lighted, as a result of t ment of the braking mechanism, which closes the electric circuit. For parking purposes, the emergency lever may be set, thus closing the electric circuit and maintaining it in closed condition. When the lamp 1s thus used as a parking lamp the signal Stop is displayed at the rear the machine, while the white light is thrown thru the bulls-eye B toward the front of the machine. Usually, the lamp is mounted on the left-hand rear fender, so that the light thrown thru the bulls-eye B lightsup the leftsideof the machine. As the White light can be seen from the front, the ordinary lamps of the machine may be turned'ofi, if desired.

The construction described is simple, moderate in cost, and highly effective for its purpose. H

The foregoing detailed description has been given for clearness of understanding oul only, and no unnecessary limitations'sh be understood therefrom, but the appended e moveclaims should be construed as broadly as permissible in view of the prior art.

What I regard as new, and desire to secure by Letters Patent, is-- 1. In a signal and parking lamp, the combination of a casing having a peripheral wall and a rear wall, said rear wall having a perforation therein with an inwardl flarin-g flange at said perforation, afior g a socket, said flange being equipped with clenching lugs, a bulls-eye pro'ecting thru said perforation and having its lm'seportion seated in said socket, areflector provided with a perforation registering with said bulls-eye, said clenching lugs extendin thru, perforations; in said reflector an clenched on the front face of the reflector,

.an-inca-ndescent lamp-bulb mounted in said casing in front of said reflector, and a glass front secured to the front portion of said peripheral wall and provided with signal characters.

2. In a signal and parking lamp, the combination of a casing comprising a cylindrical wall and a rearwardly bowed rear wall which is provided with a central perforation and with an inturned flange at said perforation, a bulls-eye seated in the socket af forded by said flange, a reflector having its central ortion bearing against the base of said bul s-eye, clenching lugs on said flange extending thru (perforations in said reflector, a socket carrie by the peripheral wall of said casing,1 an incandescent light bulb mounted in said socket, and a lass front secured to the front portion-o said peripheral wall and providedwith signal. characters.

JOHN BERG. 

